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Which gas has highest contribution in greenhouse effect? 

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In line with previous research, the study identifies heating energy as the single most significant contributor to greenhouse gas emissions.
The results show that most factors cause an increase in greenhouse gas emissions, although the extent varies.
The findings have implications for policies on greenhouse effect gas emissions.
It is shown that the greenhouse gas effect of shale gas is less than that of coal over long term if the higher power generation efficiency of shale gas is taken into account.
Natural gas has highest hydrogen-to-carbon ratio among hydrocarbon fuels, which helps in reducing greenhouse gas emissions.
The net effect is lower greenhouse gas emissions.
This effect is as significant as the greenhouse gas price.
Non-CO2 greenhouse gases in the atmosphere are now adding to the greenhouse effect by an amount comparable to the effect of CO2.
Open accessJournal ArticleDOI
Donald J. Wuebbles, Katharine Hayhoe 
763 Citations
On a per molecule basis, it is much more effective a greenhouse gas than additional CO2.
We show how the CO2 contribution to the Earth’s greenhouse effect can be estimated from relatively simple physical considerations and readily available spectroscopic data.
It makes a significant adverse contribution to the [`]greenhouse' phenomenon.
Therefore, the final impact on the relative contribution of pollutants will basically depend on the activity that receives the exogenous shock in final demand, because there are considerable differences in the way, and the extent to which, individual activities affect the relative composition of greenhouse gas emissions.
Our results show that large asymmetries exist not only in the quantitative contribution of the different activities to greenhouse gas emissions, but also in the decomposed effects of this contribution.

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